Company lists · Data refreshed September 2026
Top 17 Seed stage startups based in Boston, United States
RevenueBase identified 34 company matches for seed stage startups associated with Boston, United States as of September 2026 and tracks 383 professional contacts across them, including 108 with verified work emails. Across the United States, San Francisco is the largest hub for this category (174 companies); Boston has 34.
This list covers company matches for seed stage startups associated with Boston, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 22, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 17 largest seed stage startups based in Boston, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 109 contacts → | ||||
Exact match “FA Technology Ventures is an independent, established venture capital firm.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 2 | 21 contacts → | ||||
Exact match “EO Ventures invests in early-stage businesses that increase opportunity in America.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 3 | 13 contacts → | ||||
Exact match “LiquidMetal Ventures is a Boston based, early-stage focused venture capital fund focusing on Energy & Sustainability, Biotech & Healthcare and AI & Robotics, with a mission…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 4 | 12 contacts → | ||||
Exact match “FoundersEdge is a data-driven pre-seed fund investing in exceptional founders using technology to change the world.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 5 | 11 contacts → | ||||
Exact match “We're hiring!” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 6 | 10 contacts → | ||||
Exact match “Prepare 4 VC is a premier venture enablement platform that empowers early to mid-stage tech founders to turn bold ideas into investor-ready companies.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 7 | 9 contacts → | ||||
Exact match “Boston Harbor Angels, Celebrating 20 Years of Angel Investing, like a lighthouse, helps entrepreneurs navigate and grow their start-up businesses through the treacherous waters of…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 8 | 7 contacts → | ||||
Exact match “Altitude Connects innovative ideas, influential funding, and impeccable execution to help create some of today's most exciting startups.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 9 | 4 contacts → | ||||
Exact match “We are early stage technology investors that focus on agile teams working on disruptive problems.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 10 | 4 contacts → | ||||
Exact match “Water Bear Ventures invests in Pre-Seed, Seed and Series A startups focused on disruptive technologies with resilient teams.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 11 | 3 contacts → | ||||
Exact match “Seed thru Series B | Engineering, Product, & Design” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 12 | 3 contacts → | ||||
Exact match “We help startups by accelerating them with people, technology and expertise on their journey to disruption.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 13 | 3 contacts → | ||||
Exact match “Petri is a new approach for funding formation-stage startups at the intersection of biology and engineering.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 14 | 3 contacts → | ||||
Exact match “Vivaio is a startup lab looking to disrupt the travel and hospitality industry.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 15 | 2 contacts → | ||||
Exact match “Brezio helps early stage companies bring their ideas to life by aiding founders in navigating the complexities of technology and innovation.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 16 | 2 contacts → | ||||
Exact match “Helicase Venture is a venture capital fund based in Boston, Massachusetts.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 17 | 1 contacts → | ||||
Exact match “capital (Forwardslash Capital) is a Seed Investor focused on Enterprise B2B” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “seed stage startups”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 17 of 34 seed stage startups based in Boston, United States
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Seed stage startups based in Boston, United States at a glance
As of Sep 22, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for Boston, so it is reported there. Company counts and contact totals on this page are exact for Boston, over 34 companies.
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Company records associated with Boston, United States whose business descriptions match “seed stage startups” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every displayed company carries at least one verified work email. RevenueBase tracks 108 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 22, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Seed stage startups by metro in the United States
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “seed stage startups”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many seed stage startups are there based in Boston, United States?
RevenueBase identified 34 company matches for seed stage startups associated with Boston, United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
FA Technology Ventures tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city in the United States has the most seed stage startups?
San Francisco leads the United States with 174 company records, followed by New York (156) and Los Angeles (47). Boston has 34.
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 108 professional contacts with verified work emails tracked across these 34 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 22, 2026.
Ready to reach these companies? Verified emails and direct dials for all 34 seed stage startups based in Boston, United States. Start with a free account, no credit card.
Download this list →Related lists
Seed stage startups by geography
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
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Company intelligence · public preview
Top 17 seed stage startups based in Boston, United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 34 matching company records for seed stage startups based in Boston, United States, with 383 tracked contacts and 108 verified work emails.
This public preview shows 17 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 22, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 17 seed stage startups based in Boston, United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  FA Technology Venturesfatechventures.comHQ: Boston, MA, United StatesReported employees: Not recorded | Boston, MA, United States | Not recorded | Exact match | 109 contacts → |
“FA Technology Ventures is an independent, established venture capital firm.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Equal Opportunity Ventureseoventures.comHQ: Boston, MA, United StatesReported employees: 1-10 | Boston, MA, United States | 1-10 | Exact match | 21 contacts → |
“EO Ventures invests in early-stage businesses that increase opportunity in America.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Liquidmetal Venturesliquidmetalvc.comHQ: Boston, MA, United StatesReported employees: 11-50 | Boston, MA, United States | 11-50 | Exact match | 13 contacts → |
“LiquidMetal Ventures is a Boston based, early-stage focused venture capital fund focusing on Energy & Sustainability, Biotech & Healthcare and AI & Robotics, with a mission…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Foundersedgefoundersedge.comHQ: Boston, MA, United StatesReported employees: 1-10 | Boston, MA, United States | 1-10 | Exact match | 12 contacts → |
“FoundersEdge is a data-driven pre-seed fund investing in exceptional founders using technology to change the world.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Romulus Capitalromuluscap.comHQ: Boston, MA, United StatesReported employees: 11-50 | Boston, MA, United States | 11-50 | Exact match | 11 contacts → |
“We're hiring!” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Prepare 4 VCprepare4vc.comHQ: Boston, MA, United StatesReported employees: 1-10 | Boston, MA, United States | 1-10 | Exact match | 10 contacts → |
“Prepare 4 VC is a premier venture enablement platform that empowers early to mid-stage tech founders to turn bold ideas into investor-ready companies.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Boston Harbor Angelsbostonharborangels.comHQ: Boston, MA, United StatesReported employees: 1-10 | Boston, MA, United States | 1-10 | Exact match | 9 contacts → |
“Boston Harbor Angels, Celebrating 20 Years of Angel Investing, like a lighthouse, helps entrepreneurs navigate and grow their start-up businesses through the treacherous waters of…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Altitude Development Partnersaltitudedp.comHQ: Boston, MA, United StatesReported employees: 1-10 | Boston, MA, United States | 1-10 | Exact match | 7 contacts → |
“Altitude Connects innovative ideas, influential funding, and impeccable execution to help create some of today's most exciting startups.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  186 Ventures186ventures.comHQ: Boston, United StatesReported employees: 1-10 | Boston, United States | 1-10 | Exact match | 4 contacts → |
“We are early stage technology investors that focus on agile teams working on disruptive problems.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Water Bear Ventureswaterbearventures.comHQ: Boston, MA, United StatesReported employees: 1-10 | Boston, MA, United States | 1-10 | Exact match | 4 contacts → |
“Water Bear Ventures invests in Pre-Seed, Seed and Series A startups focused on disruptive technologies with resilient teams.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Carbon Talentcarbontalent.comHQ: Boston, United StatesReported employees: 1-10 | Boston, United States | 1-10 | Exact match | 3 contacts → |
“Seed thru Series B | Engineering, Product, & Design” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Genesis Accelgenesisaccel.comHQ: Boston, MA, United StatesReported employees: 11-50 | Boston, MA, United States | 11-50 | Exact match | 3 contacts → |
“We help startups by accelerating them with people, technology and expertise on their journey to disruption.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  PETRIpetri.bioHQ: Boston, MA, United StatesReported employees: 1-10 | Boston, MA, United States | 1-10 | Exact match | 3 contacts → |
“Petri is a new approach for funding formation-stage startups at the intersection of biology and engineering.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Vivaiovivaiolab.comHQ: Boston, MA, United StatesReported employees: 1-10 | Boston, MA, United States | 1-10 | Exact match | 3 contacts → |
“Vivaio is a startup lab looking to disrupt the travel and hospitality industry.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Breziobrez.ioHQ: Boston, MA, United StatesReported employees: 1-10 | Boston, MA, United States | 1-10 | Exact match | 2 contacts → |
“Brezio helps early stage companies bring their ideas to life by aiding founders in navigating the complexities of technology and innovation.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Helicase Venturehelicaseventure.comHQ: Boston, MA, United StatesReported employees: 1-10 | Boston, MA, United States | 1-10 | Exact match | 2 contacts → |
“Helicase Venture is a venture capital fund based in Boston, Massachusetts.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Capitalforwardslash.vcHQ: Boston, MA, United StatesReported employees: 1-10 | Boston, MA, United States | 1-10 | Exact match | 1 contacts → |
“capital (Forwardslash Capital) is a Seed Investor focused on Enterprise B2B” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 17 of 34 company matches
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Seed stage startups: dataset insights
September 22, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
34 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole United States list rather than for Boston, so it is reported there. Company counts and contact totals on this page are exact for Boston, over 34 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 22, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Seed stage startups by metro in the United States
Questions about this company list
What does Exact match mean for seed stage startups?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many seed stage startups did RevenueBase find based in Boston, United States?
The saved snapshot records 34 matching company records, 383 tracked contacts and 108 verified emails. The public preview displays 17 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 22, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Seed stage startups by geography
- Seed stage startups based in Bangalore, India
- Seed stage startups based in Mumbai, India
- Seed stage startups based in New Delhi, India
- Seed stage startups based in Austin, United States
- Seed stage startups based in Chicago, United States
- Seed stage startups based in Los Angeles, United States
- Seed stage startups based in Miami, United States
- Seed stage startups based in New York, United States
- Seed stage startups based in Palo Alto, United States
- Seed stage startups based in San Francisco, United States
- Seed stage startups based in Australia
- Seed stage startups based in Austria
Cite this list
RevenueBase Data Team. Top 17 seed stage startups based in Boston, United States. Snapshot: September 22, 2026. https://revenuebase.ai/companies/seed-stage-startups/united-states/boston.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Seed stage startups based in Bangalore, India
- Seed stage startups based in Mumbai, India
- Seed stage startups based in New Delhi, India
- Seed stage startups based in Austin, United States
- Seed stage startups based in Chicago, United States
- Seed stage startups based in Los Angeles, United States
Company intelligence · public preview
Top 17 seed stage startups based in Boston, United States
RevenueBase records 34 matching company records for seed stage startups based in Boston, United States, with 383 tracked contacts and 108 verified work emails.
This public preview shows 17 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 22, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 17 seed stage startups based in Boston, United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | FA Technology Venturesfatechventures.com HQ: Boston, MA, United StatesReported employees: Not recorded | Boston, MA, United States | Not recorded | Exact match | 109 contacts → |
“FA Technology Ventures is an independent, established venture capital firm.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Equal Opportunity Ventureseoventures.com HQ: Boston, MA, United StatesReported employees: 1-10 | Boston, MA, United States | 1-10 | Exact match | 21 contacts → |
“EO Ventures invests in early-stage businesses that increase opportunity in America.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Liquidmetal Venturesliquidmetalvc.com HQ: Boston, MA, United StatesReported employees: 11-50 | Boston, MA, United States | 11-50 | Exact match | 13 contacts → |
“LiquidMetal Ventures is a Boston based, early-stage focused venture capital fund focusing on Energy & Sustainability, Biotech & Healthcare and AI & Robotics, with a mission…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Foundersedgefoundersedge.com HQ: Boston, MA, United StatesReported employees: 1-10 | Boston, MA, United States | 1-10 | Exact match | 12 contacts → |
“FoundersEdge is a data-driven pre-seed fund investing in exceptional founders using technology to change the world.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Romulus Capitalromuluscap.com HQ: Boston, MA, United StatesReported employees: 11-50 | Boston, MA, United States | 11-50 | Exact match | 11 contacts → |
“We're hiring!” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Prepare 4 VCprepare4vc.com HQ: Boston, MA, United StatesReported employees: 1-10 | Boston, MA, United States | 1-10 | Exact match | 10 contacts → |
“Prepare 4 VC is a premier venture enablement platform that empowers early to mid-stage tech founders to turn bold ideas into investor-ready companies.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Boston Harbor Angelsbostonharborangels.com HQ: Boston, MA, United StatesReported employees: 1-10 | Boston, MA, United States | 1-10 | Exact match | 9 contacts → |
“Boston Harbor Angels, Celebrating 20 Years of Angel Investing, like a lighthouse, helps entrepreneurs navigate and grow their start-up businesses through the treacherous waters of…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Altitude Development Partnersaltitudedp.com HQ: Boston, MA, United StatesReported employees: 1-10 | Boston, MA, United States | 1-10 | Exact match | 7 contacts → |
“Altitude Connects innovative ideas, influential funding, and impeccable execution to help create some of today's most exciting startups.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | 186 Ventures186ventures.com HQ: Boston, United StatesReported employees: 1-10 | Boston, United States | 1-10 | Exact match | 4 contacts → |
“We are early stage technology investors that focus on agile teams working on disruptive problems.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Water Bear Ventureswaterbearventures.com HQ: Boston, MA, United StatesReported employees: 1-10 | Boston, MA, United States | 1-10 | Exact match | 4 contacts → |
“Water Bear Ventures invests in Pre-Seed, Seed and Series A startups focused on disruptive technologies with resilient teams.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Carbon Talentcarbontalent.com HQ: Boston, United StatesReported employees: 1-10 | Boston, United States | 1-10 | Exact match | 3 contacts → |
“Seed thru Series B | Engineering, Product, & Design” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Genesis Accelgenesisaccel.com HQ: Boston, MA, United StatesReported employees: 11-50 | Boston, MA, United States | 11-50 | Exact match | 3 contacts → |
“We help startups by accelerating them with people, technology and expertise on their journey to disruption.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | PETRIpetri.bio HQ: Boston, MA, United StatesReported employees: 1-10 | Boston, MA, United States | 1-10 | Exact match | 3 contacts → |
“Petri is a new approach for funding formation-stage startups at the intersection of biology and engineering.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Vivaiovivaiolab.com HQ: Boston, MA, United StatesReported employees: 1-10 | Boston, MA, United States | 1-10 | Exact match | 3 contacts → |
“Vivaio is a startup lab looking to disrupt the travel and hospitality industry.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Breziobrez.io HQ: Boston, MA, United StatesReported employees: 1-10 | Boston, MA, United States | 1-10 | Exact match | 2 contacts → |
“Brezio helps early stage companies bring their ideas to life by aiding founders in navigating the complexities of technology and innovation.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Helicase Venturehelicaseventure.com HQ: Boston, MA, United StatesReported employees: 1-10 | Boston, MA, United States | 1-10 | Exact match | 2 contacts → |
“Helicase Venture is a venture capital fund based in Boston, Massachusetts.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Capitalforwardslash.vc HQ: Boston, MA, United StatesReported employees: 1-10 | Boston, MA, United States | 1-10 | Exact match | 1 contacts → |
“capital (Forwardslash Capital) is a Seed Investor focused on Enterprise B2B” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 17 of 34 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Seed stage startups: dataset insights
September 22, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
34 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole United States list rather than for Boston, so it is reported there. Company counts and contact totals on this page are exact for Boston, over 34 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 22, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Seed stage startups by metro in the United States
Questions about this company list
What does Exact match mean for seed stage startups?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many seed stage startups did RevenueBase find based in Boston, United States?
The saved snapshot records 34 matching company records, 383 tracked contacts and 108 verified emails. The public preview displays 17 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 22, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 17 seed stage startups based in Boston, United States. Snapshot: September 22, 2026. https://revenuebase.ai/companies/seed-stage-startups/united-states/boston.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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